TY - RPRT TI - Pituitary-adrenal activity under different appetitive extinction procedures. AU - H Davis AU - J Memmott AU - L Macfadden AU - S Levine PY - 1976 DO - 10.1016/0031-9384(76)90170-0 UR - https://pubmed.ncbi.nlm.nih.gov/1013219/ ID - 1013219 ER -